My first Sharp PC3000 reader
I always loved to read. Starting from kindergarten. Then at school I reread almost the entire library. When I went to work, in the dashing nineties, I bought a bunch of books at the markets. The time was hard. Many went to Germany for permanent residence. My friend left too. Then a few years later in the late nineties he sent a parcel in which, in addition to unprecedented overseas sweets, there were 3 Sharp PC3000 computers.
Just such:
As a result, 2 of them were launched, and the third was left for spare parts. In fact, it was a regular IBM PC XT on an 8088 processor with 1 MB of memory, a graphic display with 4 gradations of brightness, COM, LPT, Dock ports, two PCMCIA slots in one of which I found a 512 KB memory card with a CR2032 battery.
My joy knew no bounds!
But after sitting, and twisting this little thing in his hands, it was not clear why it could be used. In this palmtop, applications were preinstalled mainly for business - a calendar, a notebook, a file manager. The Com and LPT connectors were proprietary. Miniature, similar to their full counterparts, but without pins, and knife, like PCI or PCIe. Internet at that timeissued on couponswas in such an infancy that it was possible to connect only at night and not for long, because the connection was constantly disconnected. As a result, pinout of the connectors was found, knife adapters were etched and a null modem cable was made for communication with the big brother. But in the end, it was impossible to connect with the built-in utility. The LapLink application that I found on the Internet and could not get out of the palmtop was not the same version. Searches continued and as a result I found a distribution kit with utilities.
It would seem that the problem is solved, download the program and use it for your pleasure. I suffered a week. I went through all kinds of programs, mainly toys. But due to deviation from the classic IBM PC format, many applications either did not work or did not work correctly. Or they did not have enough memory on the map. Therefore, I abandoned it until better times.
After some time, I got a job at the distillery as a duty fitter of instrumentation and automation. There was enough work during the day shift, but there was nothing to do at night, since the equipment was new and practically did not break. I didn’t buy books anymore, as disks with a bunch of all kinds of literature in DOS txt format were sold at flea markets. And having bought one such disc, you could read it for several years. Then the idea came to me to use my Micro PC.
The whole peculiarity of the memory implementation was that the embedded applications were launched from the ROM disk and they were adapted for its use. The system startup and configs lay on the built-in 76 kb RAM disk, the non-volatility of which was supported by the battery. There was also a 1MB RAM disk, the non-volatility of which was supported by the main battery. In the end, I decided to write an ultra-small application. And it seems to have started in assembler, but the lack of debugging tools was killing. Well, remember probably tasm ... As a result, I launched Turbo C 2.0 on BB and started sculpting. The first boot in Sharp showed that nothing was working. If everything worked perfectly on the BB, the application did not display anything on the palmtop. I had to go to extremes and cut to a minimum Turbo C put it in a palmtop. In the end, I still wrote a reader and enjoyed reading my favorite books during working hours for several years. Moreover, the screen in the Sharp PC3000 turned out to be the most convenient for reading, because it was made using the old classical technology without backlighting. The 80x25 mode was the most optimal and the letters on the screen were the same in size as in the books. Palmtop was powered by three AA batteries. But the presence of the circuit allowed me to install the batteries and connect a low-current charge circuit through the stabilizer. He used to eat batteries and batteries well, so the batteries were used only to store information in a RAM disk. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. Moreover, the screen in the Sharp PC3000 turned out to be the most convenient for reading, because it was made using the old classical technology without backlighting. The 80x25 mode was the most optimal and the letters on the screen were the same in size as in the books. Palmtop was powered by three AA batteries. But the presence of the circuit allowed me to install the batteries and connect a low-current charge circuit through the stabilizer. He used to eat batteries and batteries well, so the batteries were used only to store information in a RAM disk. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. Moreover, the screen in the Sharp PC3000 turned out to be the most convenient for reading, because it was made using the old classical technology without backlighting. The 80x25 mode was the most optimal and the letters on the screen were the same in size as in the books. Palmtop was powered by three AA batteries. But the presence of the circuit allowed me to install the batteries and connect a low-current charge circuit through the stabilizer. He used to eat batteries and batteries well, so the batteries were used only to store information in a RAM disk. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. The 80x25 mode was the most optimal and the letters on the screen were the same in size as in the books. Palmtop was powered by three AA batteries. But the presence of the circuit allowed me to install the batteries and connect a low-current charge circuit through the stabilizer. He used to eat batteries and batteries well, so the batteries were used only to store information in a RAM disk. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. The 80x25 mode was the most optimal and the letters on the screen were the same in size as in the books. Palmtop was powered by three AA batteries. But the presence of the circuit allowed me to install the batteries and connect a low-current charge circuit through the stabilizer. He used to eat batteries and batteries well, so the batteries were used only to store information in a RAM disk. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place.
→ Sources and the program you can take here
Just such:
As a result, 2 of them were launched, and the third was left for spare parts. In fact, it was a regular IBM PC XT on an 8088 processor with 1 MB of memory, a graphic display with 4 gradations of brightness, COM, LPT, Dock ports, two PCMCIA slots in one of which I found a 512 KB memory card with a CR2032 battery.
My joy knew no bounds!
But after sitting, and twisting this little thing in his hands, it was not clear why it could be used. In this palmtop, applications were preinstalled mainly for business - a calendar, a notebook, a file manager. The Com and LPT connectors were proprietary. Miniature, similar to their full counterparts, but without pins, and knife, like PCI or PCIe. Internet at that time
It would seem that the problem is solved, download the program and use it for your pleasure. I suffered a week. I went through all kinds of programs, mainly toys. But due to deviation from the classic IBM PC format, many applications either did not work or did not work correctly. Or they did not have enough memory on the map. Therefore, I abandoned it until better times.
After some time, I got a job at the distillery as a duty fitter of instrumentation and automation. There was enough work during the day shift, but there was nothing to do at night, since the equipment was new and practically did not break. I didn’t buy books anymore, as disks with a bunch of all kinds of literature in DOS txt format were sold at flea markets. And having bought one such disc, you could read it for several years. Then the idea came to me to use my Micro PC.
The whole peculiarity of the memory implementation was that the embedded applications were launched from the ROM disk and they were adapted for its use. The system startup and configs lay on the built-in 76 kb RAM disk, the non-volatility of which was supported by the battery. There was also a 1MB RAM disk, the non-volatility of which was supported by the main battery. In the end, I decided to write an ultra-small application. And it seems to have started in assembler, but the lack of debugging tools was killing. Well, remember probably tasm ... As a result, I launched Turbo C 2.0 on BB and started sculpting. The first boot in Sharp showed that nothing was working. If everything worked perfectly on the BB, the application did not display anything on the palmtop. I had to go to extremes and cut to a minimum Turbo C put it in a palmtop. In the end, I still wrote a reader and enjoyed reading my favorite books during working hours for several years. Moreover, the screen in the Sharp PC3000 turned out to be the most convenient for reading, because it was made using the old classical technology without backlighting. The 80x25 mode was the most optimal and the letters on the screen were the same in size as in the books. Palmtop was powered by three AA batteries. But the presence of the circuit allowed me to install the batteries and connect a low-current charge circuit through the stabilizer. He used to eat batteries and batteries well, so the batteries were used only to store information in a RAM disk. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. Moreover, the screen in the Sharp PC3000 turned out to be the most convenient for reading, because it was made using the old classical technology without backlighting. The 80x25 mode was the most optimal and the letters on the screen were the same in size as in the books. Palmtop was powered by three AA batteries. But the presence of the circuit allowed me to install the batteries and connect a low-current charge circuit through the stabilizer. He used to eat batteries and batteries well, so the batteries were used only to store information in a RAM disk. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. Moreover, the screen in the Sharp PC3000 turned out to be the most convenient for reading, because it was made using the old classical technology without backlighting. The 80x25 mode was the most optimal and the letters on the screen were the same in size as in the books. Palmtop was powered by three AA batteries. But the presence of the circuit allowed me to install the batteries and connect a low-current charge circuit through the stabilizer. He used to eat batteries and batteries well, so the batteries were used only to store information in a RAM disk. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. The 80x25 mode was the most optimal and the letters on the screen were the same in size as in the books. Palmtop was powered by three AA batteries. But the presence of the circuit allowed me to install the batteries and connect a low-current charge circuit through the stabilizer. He used to eat batteries and batteries well, so the batteries were used only to store information in a RAM disk. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. The 80x25 mode was the most optimal and the letters on the screen were the same in size as in the books. Palmtop was powered by three AA batteries. But the presence of the circuit allowed me to install the batteries and connect a low-current charge circuit through the stabilizer. He used to eat batteries and batteries well, so the batteries were used only to store information in a RAM disk. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place. Yes, and normal batteries at that time were difficult to find, so the reader was always connected to the network. Well, or for a short time from batteries to transfer to another place.
Program source
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
#include
unsigned char qui,c,membl[2000],fname[20],memtxt[128],Statusin,me;
unsigned int h,pos=0,ads,seg,t,t1,t2,memseg,memoffset,membuff,tx,rx,startbuff,buffoff=0,buffbeg,xcor,ycor,buttons,tb;
int *memblock,xpos,ypos;
long membu,memtext,lenght;
unsigned long textposit;
int memcoord,fontadr;
int GraphDriver,txtfile;
int GraphMode;
double AspectRatio;
int MaxX, MaxY;
int MaxColors;
int ErrorCode;
struct palettetype palette;
/*struct ffblk ffblk;*/
unsigned char filelist[192][15];
unsigned char i,x,xp,yp,xl,p,zc;
char *driv,*diskname;
unsigned int key,drive;
int z,filepos,dr,pgs;
void main()
{
void loadfont();
void gettextadr();
void Help();
void Search();
void zprintf();
void Initialize();
void book();
void Oscill();
void Quit();
void cls();
void prtmen();
void files();
void drivesel();
char *buf;
clrscr();
drive=getdisk();
if (drive==0) diskname="A";
if (drive==1) diskname="B";
if (drive==2) diskname="C";
if (drive==3) diskname="D";
if (drive==4) diskname="E";
files();
loadfont();
printf("National font loaded\n\n");
filepos=0;
clrscr();
while (qui!='q') {
while (key!=0x1c0d) {
prtmen();
gotoxy(1,25);
sprintf(buf,"%-3s ", filelist[drive]);
driv=buf;
while (bioskey(1)==0) ;
key=bioskey(0);
if (key==0x5000) { /* down*/
filepos=filepos+1;
}
if (key==0x4800) { /* up*/
filepos=filepos-1;
}
if (key==0x4d00) { /* right*/
filepos=filepos+22;
}
if (key==0x4b00) { /* left*/
filepos=filepos-22;
}
if (key==0x3B00) {
clrscr();
printf("\n National Book Reader v2.0\n\n");
printf(" View only russian and english TXT files\n\n");
printf(" LEFT,RIGHT,UP,DOWN - select file or drive.\n\n");
printf(" ENTER - view file.\n\n");
printf("\n\n\n\n\n\n\n\n\n\n\n\n\n\n\n (C) 2000 MSW Computing");
getch();
clrscr();
}
if (filepos<0) filepos=0;
if (filepos>=i) filepos=i-1;
if (key==0x11b) break;
}
if (key==0x11b) break;
key=0;
if (filepos<5) {
drive=filepos;
clrscr();
drivesel();
files();
}
if (filepos>4) {
clrscr();
strcpy(fname,filelist[filepos]);
book();
}
}
clrscr();
exit(0);
}
void prtmen()
{
unsigned long pages,fl;
unsigned int pgs,result;
FILE *stream;
zc=0;
for (xp=0;xp<=4;xp++) {
xl=xp*15;
for (yp=1;yp<23;yp++) {
if (filepos==zc) {
gotoxy(xl+1,yp);
cprintf(">%s",filelist[zc]);
zc=zc+1;
gotoxy(1,25);
if (zc-1<5){
cprintf("Select drive: %-2s ",filelist[zc-1]);
}
else {
strcpy(fname,filelist[filepos]);
if ((stream=fopen(fname,"r"))==NULL) {
restorecrtmode();
fprintf(stderr,"Can't open txt file");
exit(1);
}
result=fseek(stream,0L,SEEK_END);
fl=ftell(stream);
result=fseek(stream,0L,SEEK_SET);
pgs=fl/1920;
fclose(stream);
cprintf("%-1s:\\%-12s Size: %-10lu ",diskname,filelist[zc-1],fl);
gotoxy (60,25);
cprintf ("%10u pages",pgs);
}
}
else {
gotoxy(xl+1,yp);
cprintf(" %s",filelist[zc]);
zc=zc+1;
}
if (zc==i) break;
}
if (zc==i) break;
}
}
void files(void)
{
struct ffblk ffblk;
char nam=" ";
unsigned long siz=0;
FILE *street;
textmode(BW80);
z=findfirst("*.*",&ffblk,0);
strcpy(filelist[0],"A:\\");
strcpy(filelist[1],"B:\\");
strcpy(filelist[2],"C:\\");
strcpy(filelist[3],"D:\\");
strcpy(filelist[4],"E:\\");
for (i=5;i<110;i++) {
if (z==-1) break;
nam=" ";
p=sprintf(nam,"%s",ffblk.ff_name);
strcpy(filelist[i],nam);
filelist[i][13]=0xa;
z=findnext(&ffblk);
}
}
void drivesel(void)
{
dr=setdisk(drive);
if (dr==0) {
gotoxy(1,25);
cprintf("Not ready %s",filelist[filepos]);
delay(2000);
setdisk(2);
}
}
void book(void)
{
unsigned int key,i;
unsigned char status,a;
Initialize();
Oscill();
restorecrtmode();
}
void Oscill(void)
{
unsigned char bitq,c,s,asdf,pps,result,resoa;
unsigned int key,h,i,x,y,sda,scl,qsel=0,ksearch,xc,yc,zc,zx,fil,er,keypressed=0;
unsigned long posit=0,prev[3000],lastz,last;
unsigned long fl,pageset,pagesel,pconst=1920;
FILE *stream;
int pp,ppc,fn,z,dec,sig;
struct stat buf;
pp=0;
prev[pp]=0;
if ((stream=fopen(fname,"r"))==NULL) {
restorecrtmode();
fprintf(stderr,"Can't open txt file");
exit(1);
}
result=fseek(stream,0L,SEEK_END);
fl=ftell(stream);
result=fseek(stream,0L,SEEK_SET);
pgs=fl/1920;
while (!feof(stream)) {
cls();
bitq=0;
ypos=0; xpos=0;
lastz=ftell(stream);
for (h=0;h<24;h++) {
ypos=h;
last=ftell(stream);
for (pps=0;pps<80;pps++) {
keypressed=0;
result=fgetc(stream);
if (result==0xa) break;
if (result == 0xFF) {
sprintf(memtxt,"End of file. Press [ESC] for quit or [ARROW LEFT] to Page UP\n");
fseek(stream,last,SEEK_SET);
xpos=0;
ypos=24;
zprintf();
while (bioskey(1)==0) ;
key=bioskey(0);
if (key==0x5000) { /* down*/
keypressed=1;
}
if (key==0x4800) { /* up*/
keypressed=2;
}
if (key==0x4d00) { /* right*/
keypressed=3;
}
if (key==0x4b00) { /* left*/
keypressed=4;
}
if (key==0x11b) { /*quit*/
keypressed=5;
}
bitq=1;
if (keypressed==5|keypressed==4) break; /*sym='q';*/
} /*end if EOF*/
if (keypressed==5|keypressed==4) break;
if (result<32) {
memtxt[pps]='.';
}
else memtxt[pps]=result;
} /*end line*/
if (keypressed==5|keypressed==4) break;
memtxt[pps]=0x0a;
zprintf();
/*end page*/
posit=ftell(stream);
ppc=posit/1920;
sprintf(memtxt," File: %s Page: %u Pages: %u (C) 1999 MSW \n ",fname,ppc,pgs);
xpos=0;
ypos=24;
zprintf();
sprintf(memtxt," ");
xpos=0;
}
while (bitq!=1) {
while (bioskey(1)==0) ;
key=bioskey(0);
if (key==0x3C00) {
int pagesel;
pagesel=ppc;
xpos=0;
ypos=24;
sprintf(memtxt,"Select page: \n");
zprintf();
while (qsel==0) {
while (bioskey(1)==0) ;
ksearch=bioskey(0);
xpos=14;
ypos=24;
sprintf(memtxt,"%d \n",pagesel);
zprintf();
if (ksearch==0x4800) {
pagesel=pagesel+1;
}
if (ksearch==0x5000) {
pagesel=pagesel-1;
}
if (pagesel>pgs) pagesel=pgs;
if (pagesel<1) pagesel=0;
if (ksearch==0x1c0d) break;
}
if (pagesel==0) {
pageset=0;
}
else {
pageset = pagesel * pconst;
}
result=fseek(stream,pageset,SEEK_SET);
bitq=1;
}
if (key==0x3B00) {
bitq=1;
key=0;
Help();
bioskey(0);
fseek(stream,lastz,SEEK_SET);
keypressed=0;
}
if (key==0x5000) { /* down*/
keypressed=1;
}
if (key==0x4800) { /* up*/
keypressed=2;
}
if (key==0x4d00) { /* right*/
keypressed=3;
}
if (key==0x4b00) { /* left*/
keypressed=4;
}
if (key==0x11b) { /*quit*/
keypressed=5;
}
if (keypressed==5) break;
if (keypressed==4) {
bitq=1;
}
if (keypressed==3) {
pp=pp+1;
prev[pp]=posit;
bitq=1;
}
}
if (keypressed==4) {
pp=pp-1;
if (pp<=0) pp=0;
fseek(stream,prev[pp],SEEK_SET);
}
if (keypressed==5) break;
}
fclose(stream);
}
void Search(void)
{
}
void Help(void)
{ xpos=0;
ypos=0;
cls();
sprintf(memtxt," National Book Reader v2.0\n");
zprintf();
xpos=0;
ypos=2;
sprintf(memtxt," LEFT - page down\n");
zprintf();
xpos=0;
ypos=4;
sprintf(memtxt," RIGHT - page up\n");
zprintf();
xpos=0;
ypos=6;
sprintf(memtxt," ESC - exit\n");
zprintf();
xpos=0;
ypos=8;
sprintf(memtxt," F1 - this screen\n");
zprintf();
xpos=0;
ypos=10;
sprintf(memtxt," F2 - go to page\n");
zprintf();
sprintf(memtxt," UP - increment value\n");
xpos=0;
ypos=12;
zprintf();
sprintf(memtxt," DOWN - decrement value\n");
xpos=0;
ypos=14;
zprintf();
sprintf(memtxt," ENTER - select page\n");
xpos=0;
ypos=16;
zprintf();
xpos=0;
ypos=24;
sprintf(memtxt," (C) 2000 MSW Home Computing\n");
zprintf();
}
void Quit(void)
{
textcolor(WHITE);
textbackground(BLACK);
restorecrtmode();
exit(0);
}
void Initialize(void)
{
int xasp, yasp, fontst,errorcode;
GraphDriver = DETECT;
/*errorcode = registerbgidriver(CGA_driver);
if(errorcode < 0) {
printf("ЋиЁЎЄ :%s\n",grapherrormessage(errorcode));
printf("„«п бв ў ¦¬ЁвҐ «оЎго Є« ўЁиг\n");
getch();
exit(1);
} */
initgraph( &GraphDriver, CGAHI, "" );
settextstyle(DEFAULT_FONT,HORIZ_DIR,USER_CHAR_SIZE);
ErrorCode = graphresult();
if( ErrorCode != grOk ){
printf(" Graphics System Error\n");
exit( 1 );
}
getpalette( &palette );
MaxColors = getmaxcolor() + 1;
MaxX = getmaxx();
MaxY = getmaxy();
getaspectratio( &xasp, &yasp );
AspectRatio = (double)xasp / (double)yasp;
}
void zprintf(void)
{
unsigned int i,g,z;
unsigned char l,w;
z=0; c=memtxt[z];
while (c!=0xA) {
c=memtxt[z];
if (c>=0x20) {
gettextadr();
fontadr=(c-0x20)*8;
for (i=0;i<7;i++) {
g=fontadr+i;
l=membl[g];
pokeb(0xB800,memcoord,l);
i=i++;
g=fontadr+i;
l=membl[g];
pokeb(0xB800,memcoord+8192,l);
memcoord=memcoord+80;
}
xpos=xpos+1;
}
z=z++;
}
}
void gettextadr(void)
{
memcoord=xpos+(ypos*320);
}
void cls(void)
{
unsigned int cl;
for (cl=0;cl<16384;cl++) pokeb (0xb800,cl,0);
}
void loadfont(void)
{
unsigned int fil,i;
char c;
fil = _open("book.fnt",O_RDONLY);
if (fil==-1) {
printf("File BOOK.FNT not found\n");
abort();
}
if ((_read(fil,membl,1792))==-1) {
printf("Can't load national font file");
perror("");
}
/*fseek(fil,0,SEEK_SET);
for (i=0;i<1792;i++) {
fseek(fil,i,SEEK_SET);
membl[i]=fgetc(fil);
}
fclose(fil); */
_close(fil);
} → Sources and the program you can take here